An interactive whiteboard (IWB) is simply a surface onto which a computer screen can be displayed, via a projector. It is touch-sensitive and lets one use a pen like a mouse, controlling the computer from the board itself. Everything that can be displayed on a computer can be displayed onto the whiteboard and, if the computer is linked to speakers and a DVD or video player, multimedia resources can be incorporated too. The IWB has undoubtedly had an impact on the way mathematics is taught and learnt today. In this article, the author evaluates how interactive this piece of technology really is.